N-methyl-O-tert-butyldimethylsilyl-tryptophol 、
α-chloro-N-benzoylhydrazone 在
tetrakis(acetonitrile)copper(I)tetrafluoroborate 、 (S,Sp)-
tBu-phosferrox 、
sodium carbonate 作用下,
以
二氯甲烷 为溶剂,
以93%的产率得到((4aR,9aS)-4a-(2-((tert-butyldimethylsilyl)oxy)ethyl)-9-methyl-3-phenyl-4,4a,9,9a-tetrahydro-1H-pyridazino[3,4-b]indol-1-yl)(phenyl)methanone